The small size in living cells can best be attributed to which of the following factors:
- the small size of most molecules
- the large number of the cells that are necessary to form an organism
- the rare favorable surface-to-value ratio of smaller cells
- the short life spans of large animals
The third statement would be the most accurate but I believe you meant to say the surface-to-volume ratio.
The size of cells can be quite variable and depend to a great deal on the function that they have within the body or in development.
For example the yolk of a bird egg is actually a whole cell and some neurons can be many centimeters long. The limit to the ...